Stomach troubles with no clear cause: Here’s what you can do

Your stomach doesn't feel good. It's not heartburn, but it's related to eating. 

Sometimes, the discomfort begins during a meal, sometimes about half an hour later. You feel bloated and full or have a burning pain.

You're nauseated, and you might even vomit. You might call it an "upset stomach" or "indigestion." Doctors call it dyspepsia. 

When common tests can't identify a cause, the problem is said to be functional dyspepsia. When there is no clear medical solution, diet, exercise habits, adequate sleep, and stress reduction can help, according to a Harvard Medical School journal.

Here's what you can do in this situation. 

Eat right

• Avoid foods that trigger symptoms. Common culprits are caffeine, chocolate, alcohol, and spicy, acidic, or fatty foods.
• Eat smaller, more frequent meals so your stomach does not distend and can empty quickly.
• Chew your food slowly and completely.
• Avoid activities that result in swallowing excess air, such as eating quickly, chewing gum, drinking carbonated beverages, and smoking.
• Don't lie down within two hours of eating.
• Keep your weight under control.

Reduce stress

• Use stress reduction techniques, including relaxation therapies.
• Exercise. In addition to being good for your overall health, it's a proven stress reducer.
• Try cognitive behavioural therapy.

Reduce fatigue

• Get enough rest.
• Go to bed and get up at the same time each day.
• Avoid caffeine after noon.

Exercise

• Perform aerobic exercise three to five times a week for 20 to 40 minutes per session.
• Don't exercise immediately after eating.